EP1412155B9 - Verfahren zum hinterspritzen von folien - Google Patents

Verfahren zum hinterspritzen von folien Download PDF

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Publication number
EP1412155B9
EP1412155B9 EP02751126A EP02751126A EP1412155B9 EP 1412155 B9 EP1412155 B9 EP 1412155B9 EP 02751126 A EP02751126 A EP 02751126A EP 02751126 A EP02751126 A EP 02751126A EP 1412155 B9 EP1412155 B9 EP 1412155B9
Authority
EP
European Patent Office
Prior art keywords
film
mould cavity
wall
melt
enters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02751126A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1412155B1 (de
EP1412155A1 (de
Inventor
Axel Kaminski
Roland KÜNZEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Bayer MaterialScience AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer MaterialScience AG filed Critical Bayer MaterialScience AG
Publication of EP1412155A1 publication Critical patent/EP1412155A1/de
Publication of EP1412155B1 publication Critical patent/EP1412155B1/de
Application granted granted Critical
Publication of EP1412155B9 publication Critical patent/EP1412155B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • B29C2045/14081—Positioning or centering articles in the mould using means being retractable during injection centering means retracted by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C2045/14303—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure progressively transferring the insert from one mould wall to the other mould wall of the mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall

Definitions

  • the invention relates to a method for injection molding of films, in particular of printed films to protect the decorative surface against scratching or detachment.
  • thermoplastic molded parts In connection with the attachment e.g. of type plates on the surface of thermoplastic molded parts; such as. for electrical handheld devices, it is known to submit foils in the mold of an injection mold within a fixing frame and to connect by molding of thermoplastic with the molded part. Both known variants, the insertion of a film in a recess in the wall of the mold cavity and the insertion of the film in a mold frame surrounding the film in the mold cavity, lead to moldings in which the edge of the film is not surrounded by thermoplastic material.
  • DE-A-10036982 discloses a film holding device in which the film is held with positioning pins at a certain position of a forming surface. When using this device, however, it is necessary to provide the film with holes for suspension.
  • the object of the invention is therefore to develop an injection molding process which allows edge protection of the inserted into the mold cavity film and thus possible attack surfaces for mechanical action, in particular on the edges of the film prevents without having to damage the film for the purpose of positioning in the mold.
  • the object is achieved in that with the aid of a modified SpritzgieBtechnikmaschinekonstrutation the films are partially fixed in a mold half, which forms the non-visible molding surface, and transferred during the casting process with the progressive front of the thermoplastic material on the opposite side of the tool, wherein the boundary edges be enclosed in the film of plastic.
  • the invention relates to a method for injecting particular printed on its back with thermoplastic films, in an injection molding, characterized in that the film in the mold cavity of the injection molding tool initially with their front of the melt opposite Edge rests against the wall of the mold cavity, while the rest of the film is kept spaced from the wall, and that the wall-spaced part of the film is pressed by the incoming, progressing in the mold cavity melt front against the wall and simultaneously solved the support of the film is, so that the rest of the film rests against the wall of the mold cavity.
  • a plastic is preferably selected from the series polycarbonate, polyurethane, polyester, polyvinyl chloride used.
  • polycarbonate is used as the film material.
  • thermoplastic material is preferably selected from the series: polyamide, polyester, polyolefin, styrene copolymer, polyphenylene oxide, polycarbonate, polyphenylene sulfide, polyvinyl chloride, polyurethane or possible mixtures of said polymers.
  • Polyamide or polycarbonate is particularly preferably used as the thermoplastic material.
  • the film is held before the melt enters its lower part facing away from the melt front on the wall of the mold cavity opposite the wall, in particular with a sintered block under vacuum, and is released in the mold cavity with progression of the melt front.
  • the film is positioned before entry of the melt at its lower end facing away from the melt front end by means of at least one retractable from the mold cavity stop, particularly preferably at least two lower and one lateral stop.
  • Fig. 1 is a cross-section through the open mold cavity 1 of an injection mold 2 shown in which the film 7 (an EPC film, which is printed on its back) at its in Fig. 1 underlying edge is held by a spring-loaded ejector 11 on the one wall 9 of the injection mold, while the other end of the film 7, the edge 4 is directed to the inlet channel of the thermoplastic material 3, erected by another spring-loaded ejector 8 and when closing the mold cavity 1 is applied to the opposite wall 5 of the mold cavity, where the film 7 is to find its final position.
  • the film 7 an EPC film, which is printed on its back
  • thermoplastic material 3 After the entry of the thermoplastic material 3, the latter applies the film 7 to the wall 5 of the mold cavity 1 as the front of the thermoplastic material 3 progresses. Meanwhile, the spring-loaded ejector 8 is withdrawn from the mold cavity 1 and further advances the melt front 3 of the thermoplastic material (polyamide 6) in the mold cavity 1 continues and applies the film 7 smoothly on the mold cavity wall 5 at.
  • Fig. 3 It can be seen that the lower end of the film 7 is lifted out of the retaining pin 11.
  • the mold cavity 1 is completely filled with thermoplastic material 3, wherein the edges of the film 7 are surrounded by thermoplastic material 3.
  • the manufacturing cycle is terminated by opening the mold cavity 1 after Fig. 5 and ejecting the finished molding.
  • FIGS. 6 and 6a show how the edge extrusion of the film 7 is shown schematically in cross section.
  • the foil shield is completely enclosed by thermoplastic material 3 at the edges and offers no possibility of attack for a mechanical removal of the shield (foil 7) or a lateral detachment of the backside printing of the foil 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Finishing Walls (AREA)
EP02751126A 2001-07-23 2002-07-10 Verfahren zum hinterspritzen von folien Expired - Lifetime EP1412155B9 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10135816A DE10135816A1 (de) 2001-07-23 2001-07-23 Verfahren zum Hinterspritzen von Folien
DE10135816 2001-07-23
PCT/EP2002/007666 WO2003011555A1 (de) 2001-07-23 2002-07-10 Verfahren zum hinterspritzen von folien

Publications (3)

Publication Number Publication Date
EP1412155A1 EP1412155A1 (de) 2004-04-28
EP1412155B1 EP1412155B1 (de) 2009-07-01
EP1412155B9 true EP1412155B9 (de) 2009-09-16

Family

ID=7692785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02751126A Expired - Lifetime EP1412155B9 (de) 2001-07-23 2002-07-10 Verfahren zum hinterspritzen von folien

Country Status (12)

Country Link
US (1) US7276197B2 (enrdf_load_stackoverflow)
EP (1) EP1412155B9 (enrdf_load_stackoverflow)
JP (1) JP4295090B2 (enrdf_load_stackoverflow)
KR (1) KR100876269B1 (enrdf_load_stackoverflow)
CN (1) CN100430204C (enrdf_load_stackoverflow)
AT (1) ATE435107T1 (enrdf_load_stackoverflow)
BR (1) BR0211339A (enrdf_load_stackoverflow)
CA (1) CA2454411C (enrdf_load_stackoverflow)
DE (2) DE10135816A1 (enrdf_load_stackoverflow)
MX (1) MXPA04000624A (enrdf_load_stackoverflow)
TW (1) TW587982B (enrdf_load_stackoverflow)
WO (1) WO2003011555A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10312610A1 (de) * 2003-03-21 2004-09-30 Bayer Ag Verfahren zum Hinterspritzen von dekorierten Folien
DE10314032A1 (de) * 2003-03-28 2004-10-21 Braun Formenbau Gmbh Werkzeugsystem sowie Verfahren zum Mehrkomponentenspritzgießen, insbesondere Zweikomponentenspritzgießen, von Kunststoffkörpern
WO2005058574A2 (de) * 2003-12-16 2005-06-30 Weidmann Plastics Technology Ag Verfahren zum herstellen von spritzgussteilen, spritzgussvorrichtung zur durchführung des verfahrens sowie nach dem verfahren hergestelltes spritzgussteil
JP2006130870A (ja) * 2004-11-09 2006-05-25 Hitachi Housetec Co Ltd 成形品の製造方法
FR2884751B1 (fr) * 2005-04-22 2007-07-20 Europlastiques Soc Par Actions Procede de pose d'un opercule pelable sur un objet fabrique par moulage d'injection de matiere plastique
DE102009021413B4 (de) * 2009-05-14 2011-03-31 Peguform Gmbh Vorrichtung und Verfahren zur Herstellung eines eine Dekoroberfläche aufweisenden Bauteils
DE102012201875B4 (de) * 2012-02-08 2020-12-10 Rotho Kunststoff Ag Verfahren zum Herstellen eines spritzgegossenen Kunststoffartikels
BR112015023242A2 (pt) * 2013-03-15 2017-07-18 Basf Se método de formar uma estrutura de um encosto de assento para um veículo
DE102016226214A1 (de) * 2016-12-23 2018-06-28 Faurecia Innenraum Systeme Gmbh Formwerkzeug und Verfahren zum Verformen und Hinterspritzen einer biegbaren Platte
KR20180131028A (ko) * 2017-05-31 2018-12-10 현대자동차주식회사 기재와 표피재의 성형장치 및 성형방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK146709C (da) * 1980-12-09 1984-05-21 Eskesen Brdr As Fremgangsmaade til fremstilling af sproejtestoebte plastemner med indstoebte folier med dekorative og/eller beskrivende tryk samt apparat til brug ved udoevelse af fremgangsmaaden
WO1988008364A1 (en) * 1987-04-30 1988-11-03 Sumitomo Chemical Company, Limited Method of manufacturing multi-layer molded products
JPH03243312A (ja) 1990-02-21 1991-10-30 Mitsubishi Plastics Ind Ltd 金属複合材の成形方法
FR2673886B1 (fr) 1991-03-15 1995-03-24 Ams Europ Procede et dispositif de decoration d'une piece realisee par injection et piece decoree ainsi realisee.
EP0546234A1 (en) 1991-12-12 1993-06-16 Ab Cerbo An arrangement in moulding tools intended for the injection moulding of a container while simultaneously affixing a label or the like thereto
NL1010605C2 (nl) * 1998-11-20 2000-05-23 Schoeller Wavin Trepak B V Door spuitgieten vervaardigde kunststof krat.
JP2001038766A (ja) 1999-07-29 2001-02-13 Toyota Autom Loom Works Ltd 射出成形型のフィルム又はシート保持装置

Also Published As

Publication number Publication date
BR0211339A (pt) 2004-09-28
WO2003011555A1 (de) 2003-02-13
EP1412155B1 (de) 2009-07-01
EP1412155A1 (de) 2004-04-28
KR20040017829A (ko) 2004-02-27
ATE435107T1 (de) 2009-07-15
KR100876269B1 (ko) 2008-12-26
US20040169315A1 (en) 2004-09-02
CA2454411C (en) 2010-12-21
TW587982B (en) 2004-05-21
DE50213652D1 (de) 2009-08-13
MXPA04000624A (es) 2004-06-25
JP4295090B2 (ja) 2009-07-15
JP2004535959A (ja) 2004-12-02
CN1535200A (zh) 2004-10-06
US7276197B2 (en) 2007-10-02
CA2454411A1 (en) 2003-02-13
DE10135816A1 (de) 2003-02-06
CN100430204C (zh) 2008-11-05

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